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<head><meta charset="utf-8"><title>Incremental patched perf improvements · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Incremental.20patched.20perf.20improvements.html">Incremental patched perf improvements</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Incremental%20patched%20perf%20improvements/near/205343087" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> XAMPPRocky <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Incremental.20patched.20perf.20improvements.html#205343087">(Jul 29 2020 at 11:16)</a>:</h4>
<p>Does anyone know what’s the result of the incremental patched build improvements on perf? It’s pretty dramatic with incremental patched now only taking marginally longer than incremental unchanged to complete. <a href="https://perf.rust-lang.org/dashboard.html">https://perf.rust-lang.org/dashboard.html</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Incremental%20patched%20perf%20improvements/near/205348116" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jonas Schievink  [he/him] <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Incremental.20patched.20perf.20improvements.html#205348116">(Jul 29 2020 at 12:14)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/compare/fe08fb7b1e7cc5ef45e107f05b3cd30d48313d2b...8cb94fc552dc200e19001b40767c0c279572c9de">This diff</a> has <a href="https://perf.rust-lang.org/compare.html?start=fe08fb7b1e7cc5ef45e107f05b3cd30d48313d2b&amp;end=8cb94fc552dc200e19001b40767c0c279572c9de&amp;stat=instructions:u">regressed</a> it a lot, and seems harmless, so the benchmark might be unreliable</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Incremental%20patched%20perf%20improvements/near/205352663" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Joshua Nelson <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Incremental.20patched.20perf.20improvements.html#205352663">(Jul 29 2020 at 13:03)</a>:</h4>
<p><span class="user-mention" data-user-id="219696">@XAMPPRocky</span> <a href="#narrow/stream/247081-t-compiler.2Fperformance/topic/incr.20perf.20improvement">https://rust-lang.zulipchat.com/#narrow/stream/247081-t-compiler.2Fperformance/topic/incr.20perf.20improvement</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Incremental%20patched%20perf%20improvements/near/205352796" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Incremental.20patched.20perf.20improvements.html#205352796">(Jul 29 2020 at 13:04)</a>:</h4>
<p>we'll be recollecting historical data soon, I just haven't gotten around to doing so and don't want to waste <a href="http://perf.rust-lang.org">perf.rust-lang.org</a> time right this moment (we're behind as it is)</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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